Vampires usually bite in the neck. They normally try to pierce the jugular because that's how they can get at the most blood. There is no set way as to how all vampires behave. It varies from vampire to vampire. Some vampires are good and choose not to kill people except when they absolutely have to, while others are pure evil and kill people even when they do not have to and, of course, some may well be in-between. "Do they really exsist?" Do you mean "do they really exist?" If so, here's what I think: First of all, some people will ridicule me and some may even say that I'm insane, or words to that effect, but I can promise you that I actually have seen a psychiatrist before and he said at I was not mentally ill. Oh, and I PROMISE that I am NOT trolling. Anyhow, I believe in "never say never". How can we ever be 100 per cent sure that vampires are purely fictitious until we have used sonar and put up cameras that work 24/7 in every part of every place that exists? Yes, there may well be tests that can pick up genes before a baby is born, but would they necessarily be able to pick up EVERY single gene? Also, would they really be available in an undiscovered/unexplored place? Yes, a vampire who attacks and turns a person every week or so is a bit unrealistic, to say the least, but would they necessarily have to attack and turn that many people? Could they not be killing the people that they drink from and hiding the bodies? The vampires in the movie "Cirque du Freak" do not turn people just by drinking from them; they have to actually exchange blood with them to do this. They do not kill the people either; they just drink a bit of blood from them. The worst thing that would ever be likely to happen to one of their victims is that they end up a bit sick and have to take a few days off work, just like they might do if they had the flu. People do get sick due to unknown causes still, don't they? The human body may not be designed to process large amounts of blood, but are vampires necessarily human? A person who cannot digest food may not be unable to digest blood as well, but who's to say that vampires necessarily cannot digest their own food? Although they still need blood in order to survive, the ones on "The Vampire Diaries" can actually digest food, if I remember correctly. Some people may say that the existence of vampires is impossible because of the fact that they do not need to urinate or defecate. Who's to say that do not need to do this? They are undead. In my opinion, this means that are technically not dead when, naturally, they would have died a long time ago, or that they died and have gained at least sort of life and risen up. If there is life in them, would this not mean that they could still urinate and defecate? Psychic vampires are definitely real. Watch the documentary "Vampire Secrets". You can probably get it very easily on Amazon. This should give you more detail about them and about how they are definitely not fake.